Investigation and Evidence Collection Flashcards
7 cards from real JIBC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Investigation and Evidence Collection flashcards as text
When photographing a crime scene, what is the correct sequence of photography?
Answer: Overview, mid-range, close-up
The correct sequence is overview shots first to establish context, then mid-range to show relationships, then close-up shots for detail.
Which type of evidence is considered 'circumstantial' in an investigation?
Answer: Witness testimony placing the suspect near the scene
Circumstantial evidence requires inference to connect it to a conclusion, such as placing a suspect near a scene rather than directly proving their involvement.
What is the primary purpose of using an evidence log during an investigation?
Answer: To maintain a documented chain of custody
An evidence log maintains a documented chain of custody, tracking who handled evidence, when, and why to ensure its integrity.
During a witness interview, an investigator should primarily use which type of questions?
Answer: Open-ended questions encouraging narrative responses
Open-ended questions allow witnesses to provide their own narrative without being led, producing more reliable and complete information.
What does 'exculpatory evidence' mean in the context of a criminal investigation?
Answer: Evidence that tends to clear or excuse the suspect
Exculpatory evidence tends to clear or excuse a suspect from guilt or blame, and investigators are legally obligated to disclose it.
When collecting DNA evidence from a crime scene, why must investigators avoid touching samples with bare hands?
Answer: To avoid contaminating the sample with their own DNA
Bare hands contain the investigator's own DNA, which would contaminate the sample and potentially compromise the evidentiary value.
In Canadian law, what is required for a police officer to conduct a lawful search of a private residence?
Answer: A valid search warrant or exigent circumstances
Under the Canadian Charter of Rights and Freedoms, a lawful search of a private residence generally requires a valid warrant or recognized exigent circumstances.
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